Tall man. According to the detailed rules for the implementation of undergraduate major change in the School of Mathematics and Statistics of Northeast Normal University in 2023, the conditions for the major change in mathematics are as follows:

1, the original major is science non-public normal major.

2. Non-directional undergraduate first year.

3. In the first semester, the top 50% majors in the department (transfer to the department where the major is located to provide grade ranking certificate).

4, the first semester "advanced mathematics" final exam score of 90 points or higher; Foreign language, politics, physical education and other courses have not failed (transferred to the student's department to provide transcripts and seals).

5. Take the closed-book examination of advanced mathematics organized by the School of Mathematics and Statistics with a score of ≥85.